Please use this identifier to cite or link to this item: http://hdl.handle.net/2440/46004
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dc.contributor.authorAbbott, B.en
dc.contributor.authorAbbott, R.en
dc.contributor.authorAdhikari, R.en
dc.contributor.authorAgresti, J.en
dc.contributor.authorAjith, P.en
dc.contributor.authorAllen, B.en
dc.contributor.authorAmin, R.en
dc.contributor.authorAnderson, S.en
dc.contributor.authorAnderson, W.en
dc.contributor.authorArain, M.en
dc.contributor.authorAraya, M.en
dc.contributor.authorArmandula, H.en
dc.contributor.authorAshley, M.en
dc.contributor.authorAston, S.en
dc.contributor.authorAufmuth, P.en
dc.contributor.authorAulbert, C.en
dc.contributor.authorBabak, S.en
dc.contributor.authorBallmer, S.en
dc.contributor.authorBantilan, H.en
dc.contributor.authorBarish, B.en
dc.contributor.authoret al.en
dc.date.issued2007en
dc.identifier.citationPhysical Review. D. Particles, Fields, Gravitation and Cosmology, 2007; 76(6):062003-01-062003-12en
dc.identifier.issn1550-7998en
dc.identifier.issn1550-2368en
dc.identifier.urihttp://hdl.handle.net/2440/46004-
dc.description.abstractWe have searched for Gravitational Waves (GWs) associated with the SGR 1806-20 hyperflare of 27 December 2004. This event, originating from a Galactic neutron star, displayed exceptional energetics. Recent investigations of the X-ray light curve's pulsating tail revealed the presence of Quasi-Periodic Oscillations (QPOs) in the 30 - 2000 Hz frequency range, most of which coincides with the bandwidth of the LIGO detectors. These QPOs, with well-characterized frequencies, can plausibly be attributed to seismic modes of the neutron star which could emit GWs. Our search targeted potential quasi-monochromatic GWs lasting for tens of seconds and emitted at the QPO frequencies. We have observed no candidate signals above a pre-determined threshold and our lowest upper limit was set by the 92.5 Hz QPO observed in the interval from 150 s to 260 s after the start of the flare. This bound corresponds to a (90% confidence) root-sum-squared amplitude h_rssdet^90% = 4.5e-22 strain Hz^-1/2 on the GW waveform strength in the detectable polarization state reaching our Hanford (WA) 4 km detector. We illustrate the astrophysical significance of the result via an estimated characteristic energy in GW emission that we would expect to be able to detect. The above result corresponds to 7.7e46 erg (= 4.3e-8 M_sun c^2), which is of the same order as the total (isotropic) energy emitted in the electromagnetic spectrum. This result provides a means to probe the energy reservoir of the source with the best upper limit on the GW waveform strength published and represents the first broadband asteroseismology measurement using a GW detector.en
dc.description.statementofresponsibilityB. Abbott...D. Hosken...D. Mudge...J. Munch...P. Veitch...et al. (LIGO Scientific Collaboration)en
dc.language.isoenen
dc.publisherAmerican Physical Socen
dc.rights©2007 American Physical Societyen
dc.titleSearch for gravitational wave radiation associated with the pulsating tail of the SGR 1806 20 hyperflare of 27 December 2004 using LIGOen
dc.typeJournal articleen
dc.identifier.rmid0020073236en
dc.identifier.doi10.1103/PhysRevD.76.062003en
dc.identifier.pubid47181-
pubs.library.collectionChemistry and Physics publicationsen
pubs.verification-statusVerifieden
pubs.publication-statusPublisheden
dc.identifier.orcidOttaway, D. [0000-0001-6794-1591]en
dc.identifier.orcidVeitch, P. [0000-0002-2597-435X]en
Appears in Collections:Chemistry and Physics publications
Environment Institute publications

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